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问题 选择题

如图，验证植物生活需要无机盐的A、C试管中分别装有肥沃土壤浸出液和某种液体X，B、D分别为A、C试管放在相同且适宜环境中生长两星期后的情况．E是B试管中的某一根尖纵切结构示意图．下列有关叙述正确的是（　　）

A．A与B互为对照，X可能是自来水

B．吸收K离子的主要部位在标号②的区域

C．A、C试管中的液体必须等量

D．相对其他区域来说，区域③的细胞结构特点是体积较大、核较小

答案

答案：C

单项选择题

下列不属于奇恒之腑的是

A．脉

B．筋

C．髓

D．骨

E．胆
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单项选择题

Geography is the study of the relationship between people and the land. Geographers compare and contrast various places on the earth. But they also (51) beyond the individual places and consider the earth as a whole. The English word geography means "to describe the earth. " (52) geography books focus on a small area like a town or city. Others deal with a state, a region, a nation, or an (53) continent. Many geography books deal with the whole earth. Another (54) to divide the study of geography is to distinguish between physical geography and cultural geography. The former focuses on the natural world; the (55) starts with human beings and studies how human beings and their environment act (56) each other. But when geography is considered as a single subject, (57) branch can neglect the other. A geographer might be described as one who observes, records, and explains the (58) between places. If all places (59) alike, there would be little need for geographers. We know, however, that no two places are exactly the same. Geography, (60) is a point of view, a special way of looking at place.

56().

A.upon 

B.for 

C.as 

D.to
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